ABUDEFDUF 77 



This large genus, which is represented in the Philippines by 

 thirteen species, is found in all tropical seas, extending north- 

 ward to the latitude of Madeira in the Atlantic and of California 

 in the Pacific, southward to the latitudes of New Zealand and 

 South Australia. 



Key to the Philippine species of Abudefduf. 



a 1 . Body ovate-oblong, with black crossbands. 



6 1 . Snout naked; the black crossbands wider than the interspaces. 

 c*. Body with six black crossbands; a large black blotch on anterior 



dorsal spines and another on tail A. sordidus. 



c 2 . Body with seven black crossbands; no black blotch on either the 



spinous dorsal or the tail A. septemfasciatus. 



b*. Snout scaled; the black crossbands not wider than the interspaces. 

 d 1 . Scales on top of head extending to nostrils. 



e\ Body with seven black crossbands A. bengalensis. 



e\ Body with five black crossbands A. saxatilis. 



eP. Scales on top of head extending to tip of snout; body with five 

 black crossbands; each lobe of caudal fin with a black longitudinal 



stripe A. coelestinus. 



a 5 . Body subcircular, with or without black crossbands. 



/*. Body with three black crossbands A. curacao. 



f. Body without black crossbands. 



g\ Soft dorsal and anal uniformly yellow A. aureus. 



g*. Anterior dorsal and anal rays blackish A. leucogaster. 



a*. Body markedly oblong, without any black crossbands. 



h\ Edges of teeth nearly pointed A. coracinus. 



A*. Edges of teeth truncate or notched. 



t 1 . Dorsal spines 13 A. philippinus. 



i*. Dorsal spines 12, rarely 13. 



?. Dorsal spines increasing in length posteriorly; a black vertical 



band between the soft vertical fins A. dickii. 



f. Middle dorsal spines longest; no black vertical band between the 



soft vertical fins. 



A?. Spinous dorsal and back of tail with a large dark spot; body 



with a pearl white transverse band in the young..A. leucozona. 



ft*. Spinous dorsal and back of tail without any dark spot; body 



without any pearl white band. A. lacrymatus. 



ABUDEFDUF SORDIDUS (Fonkil) 



PLATE 15, FIG. 2 



Chaetodon sordidus FORSKAL, Descr. Anim. (1775) 62, No. 87; BLOCK 

 and SCHNEIDER, Syst. Ichth. (1801) 230. 



Glyphisodon sordidus RUPPKLL, Fische des Rothen Meers (1828) 34, 

 pi. 8, fig. 1; CUVIER an' VALENCIENNES, Hist. Nat. Poiss. 5 (1830) 

 349; BLEEKER, Verh. Eat. Gen. 21 (1847) 16; GUNTHER, Cat. Fishes 

 4 (1862) 41; Fische der Siidsee 2 (1876) 231 ; BLEEKER, Nat. Verh. 



